I was at m-car at Griot's next to 3 other AWs and noticed the same.
I use Meguiars Carnuba gold and pondered whether it was the wax adding the yellow. Why i apply it, there is an immediate yellow hue until it dries. My hunch is the wax which is also yellow.

Quote:

Originally Posted by Seattle S65B40

Yep - Mine is yellowing... or at least it looks that way when compared with a new one.

Any yellowing that any of you are noticing is due to improper/lack of proper paint, maintenance.

Also paint is very tough and Dishwashing liquid is not going to damage clearcoat no matter how often you use it. Dishwashing liquid is not ideal for washing due to the fact that it will strip of any LSP/Wax and leave the paint "Naked". This "Naked" surface will promote contamination adhering to the paint. This is due to the open pores and a grippy surface compared to a slick sealed paint surface which makes it more difficult to clean.